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Metal packaging containers are divided into two categories of metal cans and Aleppo. Aleppo is actually rectangular containers made using a tall sheet with a packaging capacity of 5 to 17 kg. Metal cans, however, are made in various round or rectangular shapes that are made of aluminum and steel sheets and can withstand up to 5 kg of weight. Generally, metal and tin cans are produced in several different categories such as conventional metal cans, pressure cans, seal (three pieces) and seamless (tensile).
In general, the cans of the cannabis are considered to be a high -profile and specialized industries that have many issues in the quality of their products. Metal cans are actually a type of individual made of containers whose outer sheet is a soft, special sheet of tin steel called Aleppo. The inner layer of these cans is also made of a special varnish and makes metal cans suitable for use in sensitive industries such as the food industry. In addition, the special lacquer, the type of welding and the method of connecting the metal cans are also of great importance and should be taken into consideration.
Types of metal cans
Metal cans comprise an important part of the product packaging industry and have different shapes and forms that meet the needs of most industries. The following are the types of metal cans based on the manufacturing and components;
1. Simple metal cans
Simple or ordinary metal cans can be used in various industries such as the canning, soda, spray, paint cans and other medical and chemical products. Despite the advanced lines and the use of up -to -date technologies, the construction speed has increased and has reached more than a thousand metal cans per minute. How to make such cans in the manufacturing plants according to the target market and the type of use of the cans specified, and the same, specifies the interior covers within the can.
A simple metal can consists of three parts, the upper plate, and the lower plate, which is a rectangular sheet and the upper and lower parts are circular. To attach the plates to the can of the cans without any seam and completely tangent with the body, a specific type of pimple should be used by heat and powder. This action is much more important in the food industry because if it is not done properly, it can cause contamination of contents within the can.
2. Two -piece cans (tensile)
Two -piece metallic cans are often formed by the rolling of the sheet and their foam and body are made of one material and sheet. The process of producing a two -piece metal can includes the following:
Lock in the two metal cans
Cutting sheets for the body in a zigzag or simple and tailored to the final design of the cans
put the cut sheets inside the stretching machine and producing a can with edges
3. Three metal (seam) cans
The three -piece cans of metal with a more seam made of two pieces of cans that are welded in different ways. This has caused these cans to be divided into several different categories, such as cans with the body of electrical welding seam, cans with the body of laser welding seam and a solder welding body. The steps of producing a three -piece can include:
Cutting parts of the sealant cans using double scissors
Production of three metal cans using a special machine
Coaching the seam inside the body through the use of special lacquer
assembling the body parts of the cans
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Types of metal cans
Another important thing in making metal cans will be the door of these cans and how they are connected. The door of the metal cans should be proportional to their body and overlap so that the air molecules are not allowed to enter the cans and prevent the corruption of the material in the can. As mentioned, the cans are made from three parts of the body, the upper screen and the bottom screen. The cans are included in the following categories:
1. Simple cans door
The doors of these cans are often opened by manual or automatic door and are considered to be one of the oldest types of metal cans.
2.. Easy LOVE BUND
Easy metal cans will be easily opened using a handle mounted on them. These types of cans are often used for canned and paste cans.
3. Metal combined lid
Some metal cans on the market have two doors, one of which is metal and easily opened and the other doors are designed as a plastic or metal cap.
